Rock Quantum Largo: Senses nearby hungry slimes/largos and brings food to them. It does this by picking up a food item without eating it, then sending a ghost to their location and teleporting to that ghost. The largo then drops the food for its recipient to eat.

Rock Mosaic Largo: When rolling, a trail of fire is created. These largos also roll twice as fast.

Honey Crystal Largo: Creates a fake plort along with its other plorts after eating. The fake plort can be fed to veggie-eating slimes/largos. This largo will not eat the fake plorts.

Honey Quantum Largo: Walking into a ghost pops it and immobilizes Beatrix temporarily. Tarrs fall for the ghost decoys and pop if they eat a ghost from this largo.

Honey Mosaic Largo: Tarrs will avoid this largo and cannot eat it. They will still try to eat it if the largo is launched at it.

Honey Dervish Largo: Greedily devours any fruit it picks up with its tornado, producing even more plorts.

Honey Tangle Largo: Slimes exposed to its pollen have decreased agitation, but once exposed, they're addicted and taking them away from the largo causes their agitation to rapidly increase. Honey slimes/largos are immune to addiction.

Hunter Boom Largo: Explodes as it becomes or stops being invisibile.

Rad Hunter Largo: 3x larger Rad aura.

Crystal Hunter Largo: Sends a wave of crystals towards Beatrix if they're feral. Crystals it creates are launched into the air.

Quantum Hunter Largo: If hungey, agitated, or feral, it can INSTANTLY teleport between its ghosts. Ghosts move three times as fast.

Mosaic Hunter Largo: Creates physical illusionary copies that can't eat but pop when splashed, but can attack Beatrix if the original is feral.

Hunter Dervish Largo: Spawns smaller cyclones that disorient Beatrix.

Tangle Hunter Largo: If feral, it will immobilize Beatrix with a tangle vine, and attack. Its pollen will also cause other largos and even slimes to turn on Beatrix! It only emits pollen when feral. Becomes agitated twice as quickly as other slimes/largos. Only enjoys toys if both favorite toy types are present.

Rad Boom Largo: OHKOs Beatrix if she's caught in the explosion. Explosions leave a temporary "Rad Fallout Sphere". 5x larger explosion radius if outside of a corral or hungry. Explosions also kill Tarr instantly, if they are caught in the explosion.

Crystal Boom Largo: Crystals it creates create large damaging explosions upon expiring or being splashed with water.

Quantum Boom Largo: Food and/or slimes within a radius around the largo end up teleporting with it. Affected entities occasionally glitch vertically (to distinguish from normal quantum slime glitching, which is horizontal)

Boom Mosaic Largo: Creates a firestorm with each explosion, but only if it's on solid ground when it explodes. Firestorm does not produce additional glints.

If only this were real, I could probably pass this game to my most favourite game, but I still have nostalgic feelings.Edit:Also, there are things that should be changed for being a little bit "Too hardcore".

On the subject of more unique largos though, I've actually been juggling the idea of a separate "largopedia" where each type of largo gets its own entry, a "nickname", and a tidbit of description how these largos behave in the wild.